This work aims to control pulsed power for biomedical fields, which demands sensitive parameters. The pulsed power consists of a voltage rise time of less than 50 ns and charging energy to 1.0 J/pulse; also, the pulse...This work aims to control pulsed power for biomedical fields, which demands sensitive parameters. The pulsed power consists of a voltage rise time of less than 50 ns and charging energy to 1.0 J/pulse; also, the pulse control area includes pulse interval pulse shot number, output voltage. To achieve this system, a pulsed power system exists including software running on PC, universal serial bus （UgB~ for connection, and FPGA controller. Using the software for complex control of pulsed power will enable expansion into various fields with easy operation.展开更多
文摘This work aims to control pulsed power for biomedical fields, which demands sensitive parameters. The pulsed power consists of a voltage rise time of less than 50 ns and charging energy to 1.0 J/pulse; also, the pulse control area includes pulse interval pulse shot number, output voltage. To achieve this system, a pulsed power system exists including software running on PC, universal serial bus （UgB~ for connection, and FPGA controller. Using the software for complex control of pulsed power will enable expansion into various fields with easy operation.
文摘当初,Intel为自己的82810芯片组创造了Hub Link技术来连接南北桥芯片,81x芯片组成为最能发挥Ultra DMA66传输性能的芯片组。然而,由于Intel的授权费用高昂,很多芯片组厂商为了降低成本都开始开发自己的连接技术。例如Via公司开发了V-Link(32位,66MHz,266MB/s),SiS公司开发了DPI(Dedicated Pci to Ide bus,266MB/s)和Multi-threaded IO Link(1.2GB/s),而Motorola公司则提出了RapidI/O。本文要讲的是AMD公司最新开发的一种输入输出总线结构——HyperTransport。该技术设计的目的是解决32位和64位处理器系统中的输入输出瓶颈问题。该技术可以提供比PCI、PCI-X和AGP等输入输出总线体系结构高一个数量级的总线数据处理量,其传输速度事与诸如Rapid I/O和InfiniBand等输入输出总线结构相媲美。
